Seems like (b). I can't really find any evidence with proof a laptop owned by Hunter Biden actually existed and was somehow found in a pawn shop, given to Rudy Giuliani, then to the FBI, found to be filled with "evidence", then totally suppressed. It's all such a ludicrous story with no real proof that people (like you) who talk about it tend to get dismissed. I'm generally for dismissal of the conversation like this (downvoting and hiding it) because generally it tends to turn towards more stories with little or no evidence and doesn't really bring anything new to the table.

That being said, I find it funny that people want an exciting story about a forgotten laptop when it's generally well accepted that Hunter Biden accepted a job he wasn't qualified for in a foreign country. For me that's pretty clearly nepotism at best and harming the interests of your own country at worst, and displays a clear lack of judgement. But Americans like a conspiracy theory...